1990 Geo Prizm Vehicle Wiring Chart and Diagram

Vehicle Wiring Details for a
1990 Geo Prizm

Item	Wire Color	Polarity	Wire Location
12V	white or black/red	Positive (+)	ignition harness
Starter	black/white	Positive (+)	ignition harness
Starter 2	none
Ignition	black/yellow	Positive (+)	ignition harness
2nd Ignition	black/orange	Positive (+)	ignition harness
3rd Ignition	none
Accessory	blue/red	Positive (+)	ignition harness
Accessory 2	none
Tachometer	black		igniter or fusebox
Power Door (Lock) Wiring Diagram for [Negative (-)] Door Lock	blue/white	Negative (-)	driver's kick panel
Power Door (Unlock) Wiring Diagram for [Negative (-)] Door Unlock	blue/yellow	Negative (-)	driver's kick panel
Door Trigger	red/white [1]	Negative (-)	dr. kick or theft mod.
Dome Supervision Wiring Diagram for [none] Dome	none	none	none
Headlights	red/white [2]	Negative (-)	steering column
Parklight Positive	dk. green	Positive (+)	driver's kick panel
Parklight Negative	lt.grn or lt.grn/blk	Negative (-)	steering column
Wipers	blue/black	Positive (+)	steering column
Left Front Window (Up/Down)	grn or rd,yel or grn		driver's door switch
Right Front Window (Up/Down)	green/red, blue/wht		dr. door or kick panel
Left Rear Window (Up/Down)	red/grn, blue/black		same
Right Rear Window (Up/Down)	red/black, yellow		same (rest at ground)
Trunk/Hatch Pin	red/white [3]	Negative (-)	light or sw. in trunk
Hood Pin	red	Negative (-)	anti-theft mod. or pin
Trunk/Hatch Release Wiring Diagram for [] Trunk/Hatch	none
Factory Alarm (Arm)	white or blue/yellow	Negative (-)	dr. kick or theft mod.
Factory Alarm (Disarm)	wht/grn or blue/wht	Negative (-)	same
Horn	green/red	Negative (-)	steering column
Brake	green/white	Positive (+)	brake pedal switch
Door Motor (Lock)	none	none	none
Door Motor (Unlock)	none	none	none
Disarm	none	none	none
Disarm No Unlock	none	none	none

Additional Info:
[1] Anti-theft module 18 pin plug pass. kick panel [2] Also ground red/green for cars with retractable headlights. [3] Wagons common with doors. Also at anti-theft module at pass. kick panel.

ATTENTION: This wiring information is being provided free of charge and on an "as is" basis, without any representation or warranty. It is your responsibility to verify any circuit before interfacing with it by using a digital multimeter. GNU Industries, Inc. assumes no responsibility with regards to the accuracy or currency of this information. Proper installation in every case is and remains the responsibility of the installer. GNU assumes no responsibility resulting from an improper installation, even in reliance upon this information.